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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 248532Generated: October 30, 2026

2-(1,1-Difluoroethyl)pyrazine → 2-(1,1-Difluoroethyl)piperazine

https://huagongshe.com/reaction/248532

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(1,1-Difluoroethyl)pyrazineHCID 19763564—
ReactantHCID 178418361HCID 178418361—
CatalystPlatinum oxide (PtO)HCID 82844—
SolventMethanolHCID 887—
Product2-(1,1-Difluoroethyl)piperazineHCID 19763581—

Reaction Steps

A 4.3 g portion of 3-(1,1-difluoroethyl)pyrazine in 25 ml of methanol was reduced with 50 psi hydrogen and 750 mg of platinum oxide at 20° C. for 5 hours. The resulting oil was purified by chromatography, giving about 700 mg of 3-(1,1-difluoroethyl)piperazine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05210193
Source datasetuspto-grants-1993_05
ORD IDord-61ee99b124134599a18fa13e6ec7af1c
Source noteuspto-grants-1993_05